I have an SDI cable coming out from the BetaSP deck into the Teranex. I have the closed caption enabled and the LED light is illuminated on the Teranex. I have a thunderbolt coming out from the Teranex into the MAC. I'm using Premiere CC to capture to Apple Pro Res 422 but it failed to retain the closed captioning.

I sent out the tape to another transfer house and they were able to get it to work at pro res 422 HQ, the closed captions were stored on line 21. It worked for me when I captured at 10bit YUV uncompressed but not pro res 422 HQ. However, these files are not what the client requested. When I downconverted them to Apple Pro Res 422 I lost the closed captioning.